Roller-bearing



(No Model.)

I F. VAN BENTHUYSEN.

ROLLER BEARING. v No. 479,038. Patented July 19, 1-892,

Juvrzmon: fi- F FRAN KVAN BEN TH uvszu, C 1. w BY ANMLQ AT Tomm Unu'rnnSTATES 'ATENT FFIQE FRANK VAN BENTHUYSEN, OF ALBANY, NEW YORK.

ROLLER-BEARING.

SPECIFICATION forming part of Letters Patent No. 479,038, dated July-19, 1892.

Application filed September 19, 1891. Serial No. 406,187. (No model.)

To all whom it may concern.-

Be it known that I, FRANK VAN BENTHUY- SEN, of the city and county ofAlbany, in the State of New York, have invented new and usefulImprovements in Roller-Bearings, of which the following is aspecification.

My invention relates to improvements in roller-bearings for shafts andother revolving parts of machines,but more especially to that class ofsaid bearings which are designed for use on bicycles and other forms ofvelocipedes; and the object of my invention is to provide ajournal-bearing that will be approximately frictionless and willpractically prevent the admission of dust and grit thereto. This objectI attain by the mechanism illustrated in the accompanying drawings,which, being herein referred to, form part of this specification, and inwhich-- Figure 1 is a longitudinal section of one form of my inventionas applied to the hub of a bicycle-wheel, the rollers of myrollerbearing and the shaft on which said bearing runs being shown inelevation. Fig. 2 is a like section showing a modified form of securingthe cage in the hub of the wheel. Fig. 3 is a transverse section of Fig.2 at the irregular line X X. Fig.4 is a transverse section of Fig. 2 atthe line Y Y, and Fig. 5 is a longitudinal section of a modified form ofthe cage for containing the rollers of my roller-bearing.

As represented in the drawings, A designates a hub of a bicycle-wheelmade in tubular form and having at the middle of its bore an internalcircumferential rib 1. The opposite ends of said hub are open, and thebore from the rib 1 outwardly to each end of the hub forms recesses forcontaining the cages for the roller-bearings.

The cages B consist of a body-piece 2 and an annular end piece 4. Thebody-piece 2 is made in the form of a hollow cylinder, which is fittedsnugly into the bore of the hub A and is provided with a circumferentialflange 3, which overlaps on the face of said hub, and with a head 5,having a central opening 6, through which the shaft of the bicycle protrudes. The end piece 4 is preferably provided with an annular groove atits outer edge for receiving the inner end of the bodypiece on aconit'orm seat, as shown in Fig. 1;

but said body-piece and annulus may be made to screw together, as shownin Fig. 5. Contained in each cage B there is a roller-bearing D,which isfitted to fill the annular space between the bore of the body-piece 2and the peripheryof the shaft 0.

The roller-bearingD (shown in Figs. 1, 2, and 3) forms no part of mypresent invention,the samebeing shown and described inLettersPatent ofthe United States, No. 1539,7741, granted to me therefor and bearingdate September 22, 1891; but, when preferred, any other form ofroller-bearing maybe substituted therefor.

The cages B are retained in the hub A, so as to have their inner endsbear against the rib 1 either by means of screws 7, as shown in Fig. 2,or by means of corresponding screwthreads 10, formed on the body-piece 2and in the bore of the hub A, as shown in Fig. 1.

O designates a bicycle-shaft, which is provided with a circumferentialflange 8, which is located in the space formed by the reduced bore ofthe hub A to produce the rib 1. Said flange comes between the adjacentinner ends of the cages B, and between the latter and said flange balls9 are interposed to form an antii'riction bearing for resisting anyendwise thrust that said shaftmay be subjected to or to receive anypressure resulting from a tendency of the hub A to move endwise on saidshaft.

When the cage B is made in the form shown in Fig. 5, said cage and theroller-bearing contained therein can be removed from the hub A andreplaced therein without separating said bearing from the cage.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination of a shaft provided with a circumferential flangewhich separates the journal into two parts, a Wheel-hub having at eachend a recess for containing a roller-bearing, said recesses beingseparated by an internal circumferential flange or rib and each of saidroller-bearings being contained in a cage that is removable from saidhub, and anti-friction balls or rollers interposed between the inner endof said cages and the flange of said shaft, as and for the purposeherein specified.

2. The combination of a hub A, having an onto the outer face of saidhub, and a roller- 10 bearing D, contained in said cage and fitted torevolve therein, as and for the purpose herein specified.

FRANK VAN BENTIIUYSEN.

Witnesses:

WM. H. Low, S. B. BREWER.

